<PlayerColors>
<Row>
<Type>PLAYERCOLOR_GERMANY</Type>
<PrimaryColor>COLOR_PLAYER_GERMANY_ICON</PrimaryColor>
<SecondaryColor>COLOR_PLAYER_GERMANY_BACKGROUND</SecondaryColor>
<TextColor>COLOR_PLAYER_WHITE_TEXT</TextColor>
</Row>
</PlayerColors>
<Colors>
<Row>
<Type>COLOR_PLAYER_GERMANY_ICON</Type>
<Red>0.145</Red>
<Green>0.169</Green>
<Blue>0.129</Blue>
<Alpha>1.0</Alpha>
</Row>
</Colors>
<Colors>
<Row>
<Type>COLOR_PLAYER_GERMANY_BACKGROUND</Type>
<Red>0.702</Red>
<Green>0.698</Green>
<Blue>0.722</Blue>
<Alpha>1.0</Alpha>
</Row>
</Colors>
Alright, so exactly what steps did you take to change the colors? Could we see the revised coding?
Just describing the problem is almost never sufficient for us to diagnose your problem.
I editedassets\DLC\Expansion2\DLC\DLC_05\Gameplay\XML\CIV 5Civilization_DLC_Korea.xml
to<Type>COLOR_PLAYER_KOREA_BACKGROUND</Type>
<Red>0.1058</Red>
<Green>0.1294</Green>
<Blue>0.3765</Blue>
<Alpha>1</Alpha>
to make it black. But nothing changed in game. I didn't touch the icon color since it's already red.<Type>COLOR_PLAYER_KOREA_BACKGROUND</Type>
<Red>0</Red>
<Green>0</Green>
<Blue>0</Blue>
<Alpha>1</Alpha>
Perhaps when checking if it works you loaded a saved game? I think the colors are saved with the game - try starting a new game, the color change should work then.
Edit: I didn't see your last post when writing the above. If you started a new game indeed then I don't know why it doesn't work for you.
Note that such change doesn't work for the colored civ icon. There are two versions of the civ icons: the "alpha" icon, used for city banners of cities belonging to other civs (which change colors), and the "shiny" colored icon, used for other purposes. This kind of icon is just colored graphics (.dds file), which doesn't change when you alter the player colors. So to change this icon you need to extract and edit the .dds file, which complicates things...
Mod is out - check it out on the AWMN thread.